Let's divide 70986252 by 399
We want to divide 70986252 by 399.

On to step 1:
If we divide 7 by 399, we get 0 and a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Grab the next digit (0) from the dividend, add it to 7, then carry on: 70 / 399

Moving on to step 2:
70 divided by 399 is 0 with a remainder of 70.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 70 after subtracting 0 from 70.
Grab the next digit (9) from the dividend, add it to 70, then carry on: 709 / 399

Let's proceed to step 3:
709 divided by 399 is 1 with a remainder of 310.
The next digit of our result is 1. 
Result so far: 1.0
Subtract 399 from 709 to get 310.
Take the next digit (8) from the dividend and append it to 310, then repeat: 3108 / 399

Advancing to step 4:
399 can be fit into 3108 7 times, resulting in a remainder of 315.
Write down 7 as next digit of the result. 
Result so far: 17.0
Subtracting 2793 from 3108 leaves us with 315.
Include the next digit (6) from the dividend after 315, then repeat: 3156 / 399

Moving on to step 5:
399 goes into 3156 7 times with a remainder of 363.
Use 7 as the next digit of our solution. 
Result so far: 177.0
The remainder is 363 after subtracting 2793 from 3156.
Fetch the next digit (2) from the dividend, attach it to 363 and continue: 3632 / 399

On to step 6:
The number 399 fits into 3632 9 times, leaving a remainder of 41.
Write down 9 as next digit of the result. 
Result so far: 1779.0
Subtracting 3591 from 3632 leaves us with 41.
Grab the next digit (5) from the dividend, add it to 41, then carry on: 415 / 399

Going ahead to step 7:
415 divided by 399 is 1 with a remainder of 16.
Put 1 as the next digit of the answer. 
Result so far: 17791.0
Deduct 399 from 415 and we're left with 16.
Take the next digit (2) from the dividend and append it to 16, then repeat: 162 / 399

Going ahead to step 8:
399 goes into 162 0 times with a remainder of 162.
Use 0 as the next digit of our solution. 
Result so far: 177910.0
The remainder is 162 after subtracting 0 from 162.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1620, and continue the process.

Let's proceed to step 9:
399 goes into 1620 4 times with a remainder of 24.
Put 4 as the next digit of the answer. 
Result so far: 177910.4
If we subtract 1596 from 1620, we get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Advancing to step 10:
399 can be fit into 240 0 times, resulting in a remainder of 240.
The number 0 becomes the next digit in our result. 
Result so far: 177910.4
Subtract 0 from 240 to get 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

On to step 11:
If we divide 2400 by 399, we get 6 and a remainder of 6.
Record the quotient 6 as the next digit in the result. 
Result so far: 177910.406
Subtracting 2394 from 2400 leaves us with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Let's proceed to step 12:
When dividing 60 by 399, we get 0 with a remainder of 60.
Use 0 as the next digit of our solution. 
Result so far: 177910.406
If we subtract 0 from 60, we get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Moving on to step 13:
When dividing 600 by 399, we get 1 with a remainder of 201.
The number 1 becomes the next digit in our result. 
Result so far: 177910.40601
The remainder is 201 after subtracting 399 from 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2010, and continue the process.

Going ahead to step 14:
2010 divided by 399 is 5 with a remainder of 15.
Use 5 as the next digit of our solution. 
Result so far: 177910.406015
If we subtract 1995 from 2010, we get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Let's proceed to step 15:
399 goes into 150 0 times with a remainder of 150.
The number 0 becomes the next digit in our result. 
Result so far: 177910.406015
Subtract 0 from 150 to get 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

Let's proceed to step 16:
When dividing 1500 by 399, we get 3 with a remainder of 303.
Write down 3 as next digit of the result. 
Result so far: 177910.40601503
Subtract 1197 from 1500 to get 303.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3030, and continue the process.

The final outcome is 177910.40601503, with a leftover of 3.03e-07.